Block diagram
Chapter 3
Connections
1) Connection of constant voltage loudspeaker signals:
The ATU44 can be used for conversion of a constant voltage loudspeaker level signal
as mainly used in distributed public address audio systems, into a balanced line level
audio signal. Depending of the line voltage (100V, 70V, 50V or 33V), the correct terminals
of the loudspeaker input (5-pin terminal block) connector shall be used. The line level
output (available on the XLR connector) can then be fed directly to any line level input
on amplifiers or pre-amplifiers. Make sure the input selector switch is in 100V (right)
position.